Home / 13,345.86-19,989.63-6,760.74

Finding the Fourth Proportional to 13,345.86, 19,989.63 and 6,760.74

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Solution

The fourth proportional to 13,345.86, 19,989.63 and 6,760.74 is: 10,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.86 : 19,989.63 = 6,760.74 : x
  2. Step 2: Convert to fraction form
    13,345.86/19,989.63 = 6,760.74/x
  3. Step 3: Cross multiply
    13,345.86x = 19,989.63 × 6,760.74
  4. Step 4: Simplify right side
    13,345.86x = 135,144,691.13
  5. Step 5: Solve for x
    x = 135,144,691.13/13,345.86
  6. Step 6: Final answer
    x = 10,126.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.